Wareable Air Purifier build negative ion emitter high ...
2021-11-15 · High-efficiency anion air purifier,the maximum negative ion concentration can reach 80-150 million per cubic centimeterit ,it can take the initiative to adsorb sedimentation PM2.5,smoke,pollen,dust,secondhand smoke and other pollution of a particular matter to remove harmful substances,viruses,bacteria; Long term Working Time Guarantee: